二维分散模板晶粒生长织构0.5Pb(Ni1/3Nb2/3)O3-0.16PbZrO3-0.34PbTiO3陶瓷的显微组织演变及压电性能增强

IF 5.6 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International Pub Date : 2025-03-01 DOI:10.1016/j.ceramint.2024.12.350

Seong Wook Cho , Yong-Hyeon Na , Jeong Min Baik , Young Hun Jeong

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引用次数: 0

摘要

提出了一种二维分散模板晶粒生长（2DD TGG）方法，用于制备0.5Pb(Ni1/3Nb2/3)O3-0.16PbZrO3-0.34PbTiO3 （PNNZT）压电陶瓷，该陶瓷采用高度均匀排列的BaTiO3 （BT）模板进行织形。与传统的TGG工艺不同，2DD TGG使用无bt和含bt的压电层，它们交替层压。在1000℃下烧结15 h，得到了高达94%的织构度。织构后的PNNZT陶瓷具有优异的压电性能，d33=1334 pC/N, kp=92.4%, g33=38.5 × 10−3 V∙m/N，且在1 kV/mm下，d33∗的大信号电应变显著增强，达1409 pm/V。这些数值表明，2DD TGG织构的PNNZT陶瓷优于传统TGG织构的PNNZT陶瓷。此外，其疲劳性能令人满意，为压电致动器的应用提供了潜在的应用前景。

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Microstructural evolution and enhanced piezoelectric properties of 0.5Pb(Ni1/3Nb2/3)O3-0.16PbZrO3-0.34PbTiO3 ceramics textured by two-dimensionally-dispersed template grain growth

A two-dimensionally-dispersed template grain growth (2DD TGG) method is proposed for making piezoelectric 0.5Pb(Ni_1/3Nb_2/3)O₃-0.16PbZrO₃-0.34PbTiO₃ (PNNZT) ceramics, textured using highly equi-aligned BaTiO₃ (BT) templates. Unlike a conventional TGG process, the 2DD TGG utilizes both BT-free and BT-included piezoelectric layers, which are laminated alternately. A significantly high texture degree of 94% was obtained for the PNNZT ceramic textured by the 2DD TGG when sintered at 1000°C for 15 h. The evolved microstructure of the textured PNNZT ceramic led to its outstanding piezoelectric properties of d₃₃=1334 pC/N, k_p=92.4%, g₃₃=38.5 × 10⁻³ V∙m/N, along with a dramatically enhanced large-signal electrostrain of d₃₃^∗ of 1409 pm/V at 1 kV/mm. These values indicate that the PNNZT ceramic textured by 2DD TGG is superior to those textured by conventional TGG. In addition, its fatigue behavior was satisfactory, allowing potential use for application in piezoelectric actuator devices.

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来源期刊

Ceramics International 工程技术-材料科学：硅酸盐

CiteScore

9.40

自引率

15.40%

发文量

4558

审稿时长

25 days

期刊介绍： Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties. Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour. Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.